OverviewAll product unitsProduct unitPassive ComponentsProduct groupEMC ComponentsProduct familyFilter Bags & SticksDesign kitFilter Stick RS-485 Profibus EMC

Filter Stick RS-485 Profibus EMC

Order Code 8294851

Characteristics

  • Ready fabricated and populated RS-485 filter stick for test purposes
  • Fast testing of the filter effect on the system under test
  • Straightforward design implementation through BOM and layout files
  • Prevention of negative influence on the operating behavior due to interference emissions, electrostatic discharges (ESD) and fast transients (burst)
  • Filtering directly at the interface

Applications

  • RS-485 applications with 9-pin D-SUB connectors and pin assignment according to PROFIBUS definition

PCB layout files

The RS-485 EMC and ESD solution can be easily integrated into designs. PCB layout files (Gerber) can be downloaded here.

Download Gerber File here

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Samples
Order Code Data­sheet Simu­lation Downloads Product series Samples

Plug and Play!

To avoid reduced integrity of the data transfer due to interference and to pass EMC tests, components matched to the data lines are necessary.

For simplified implementation, the adapter stick was designed, which contains a complete filter circuit for the selected application. The filter stick is plugged into the corresponding interface for test purposes. If the test is passed with the filter stick plugged in, the filter circuit can be integrated into the system.

  1. Plug in filter stick
  2. Check filter effect
  3. Implement the circuit in the system

Filterperformance

Power Line Filter

<ul><li>Attenuation up to 95 dB due to pi-filter</li><li>Protection of high frequency voltages</li></ul>
  • Attenuation up to 95 dB due to pi-filter
  • Protection of high frequency voltages

Data Line Filter

<ul><li>High common mode attenuation over wide frequency range due to common mode choke (WE-SL2) and Y-capacitors (WCAP-CSGP)</li></ul>
  • High common mode attenuation over wide frequency range due to common mode choke (WE-SL2) and Y-capacitors (WCAP-CSGP)

Data Line Filter

<ul><li>High differential mode attenuation from 6 MHz due to X-capacitor (WCAP-CSGP)</li><li> No influence on the data signal according to RS-485 standard</li></ul>
  • High differential mode attenuation from 6 MHz due to X-capacitor (WCAP-CSGP)
  • No influence on the data signal according to RS-485 standard